You can get some deals on base game right now, or at least like a week ago. People were posting that places had TTK+full game for $9.99. I re-bought the full game like a month ago for $20 off PS store because I lost the fucking CD somewhere.
Anyways gamescom reveal was all about the private matches in PvP. which is really cool if a few of your buds just want to fuck around. Rep still counts but only up to blues for rewards. You can also enter solo to check out the maps. But you can set up all sorts of game types like 6vs6 elimination and shit like that. All 30 maps are in the private game mode, so even ones that you rarely or never saw are there. They even have a vehicle toggle for some of the larger ones Plus they showed more armor, weapons, some new perks.... The stream also showed 2 of the 4 new PvP maps, and the new game mode, which looked pretty good. something new.